Markovnikov and anti-Markovnikov products of drawn alkenes

13 questions on Markovnikov and anti-Markovnikov products of drawn alkenes from the Organic Reaction Mechanisms II: Electrophilic and Radical Reactions chapter: 3 NEET level, 5 JEE Main, 5 JEE Advanced. Each one opens with its answer and solution.

• The alkene shown reacts with HBr in the dark (no peroxide). Which structure is the major product? NEET level, drawn structure
• The alkene shown is treated with dilute aqueous acid, H3O+. Which structure is the major product? NEET level, drawn structure
• The alkene shown reacts with HBr in the presence of a peroxide, ROOR. Which structure is the major product? NEET level, drawn structure
• The alkene shown undergoes (i) BH3 in THF, then (ii) H2O2, NaOH. Which structure is the major product? (Relative configuration is what matters; one enantiomer o... JEE Main level, drawn structure
• The alkene shown (a racemic compound; ignore stereochemistry) is treated with (i) Hg(OAc)2, H2O, then (ii) NaBH4. Which structure is the major product? JEE Main level, drawn structure
• The alkene shown reacts with HBr and a peroxide, ROOR. Which structure is the major product? JEE Main level, drawn structure
• The alkene shown is treated with HBr under radical conditions (ROOR). Which structure is the major product? JEE Main level, drawn structure
• The alkene shown is heated with dilute H2SO4 in water. Which structure is the major product? JEE Main level, drawn structure
• The alkene shown undergoes (i) BH3 in THF, then (ii) H2O2, NaOH. Which structure is the major product? (Choose by relative configuration; one enantiomer of each... JEE Advanced level, drawn structure
• Which of the following reagent sequences convert the alkene shown mainly into the tertiary alcohol (Markovnikov hydration product)? JEE Advanced level, drawn structure
• The alkene shown undergoes hydroboration-oxidation ((i) BH3 in THF; (ii) H2O2, NaOH). Select all correct statements about the product. JEE Advanced level, drawn structure
• The alkene shown reacts with HBr either in the dark or with ROOR. Select all correct statements. JEE Advanced level, drawn structure
• The alkene shown is converted by (i) BH3 in THF and (ii) H2O2, NaOH into an alcohol (regiochemistry as in hydroboration-oxidation). Counting configurational ste... JEE Advanced level, drawn structure